A trendy, fast-fashion D2C jewellery brand was stuck in a growth plateau despite strong social engagement and weekly product drops. Rising CAC and falling ROAS signaled a need for strategic change. By bringing in a performance specialist who applied AI-enhanced full-funnel advertising—covering creative testing, audience segmentation, predictive budgeting, and personalized retargeting—the brand doubled its revenue in four months. With a 3.9x ROAS and a 60% drop in CAC, the cam